.\" $NetBSD: round.3,v 1.7 2013/11/12 00:10:29 joerg Exp $
.\"
.\" Copyright (c) 2003, Steven G. Kargl
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.\" $FreeBSD: src/lib/msun/man/round.3,v 1.2 2004/06/20 09:27:17 das Exp $
.\"
.Dd November 12, 2013
.Dt ROUND 3
.Os
.Sh NAME
.Nm round ,
.Nm roundf ,
.Nm roundl
.Nd round to nearest integral value
.Sh LIBRARY
.Lb libm
.Sh SYNOPSIS
.In math.h
.Ft double
.Fn round "double x"
.Ft float
.Fn roundf "float x"
.Ft long double
.Fn roundl "long double x"
.Sh DESCRIPTION
The
.Fn round ,
.Fn roundf ,
and
.Fn roundl
functions return the nearest integral value to
.Fa x ;
if
.Fa x
lies halfway between two integral values, then these
functions return the integral value with the larger
absolute value (i.e., they round away from zero).
.Sh SEE ALSO
.Xr ceil 3 ,
.Xr floor 3 ,
.Xr math 3 ,
.Xr rint 3 ,
.Xr trunc 3
.Sh STANDARDS
The
.Fn round
and
.Fn roundf
functions conform to
.St -isoC-99 .
.Sh HISTORY
The
.Fn round
and
.Fn roundf
functions appeared in
.Nx 2.0 .
